| 摘要:针对影响气阀间隙设定的因素众多,长期以来以经验方式设定,而没有一套科学的气阀间隙设定方法的问题,通过对内燃机进、排气机构使用情况的长期跟踪,并结合对各种燃料内燃机燃烧特性及气阀缸盖等的材料高温膨胀特性的研究,提出了一种四冲程大功率内燃机气阀间隙设定方法——气阀间隙热态确定法。实际应用表明:通过该方法设定的气阀间隙运行状态理想,从而可延长气阀使用寿命和保证内燃机正常运转。 |
| 关键词: 内燃机 气阀 间隙 设定 |
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| Air Valve Clearance Setting of Four StrokeLarge Power Internal Combustion Engine |
| Huang Jiatian,Ma Zhiqiang,He Caitian,Liu Dejian |
| Navy Equipment Repair Superintend Office for Qingdao District, Shandong Qingdao 266001;Shanghai Golston Shipping Fittings Co.,Ltd., Shanghai 201201;CSSC Marine Power Co., Ltd., Jiangsu Zhengjiang 212002 |
| Abstract:The setting of air valve clearance is influenced by many factors, and has been for a long time determined based on experience, but lack of any scientific methods. Through long-term follow-up on the application conditions of ICEs’ inlet and outlet mechanism, and based on the combustion characteristics of ICEs using different fuels, as well as the high-temperature expansion characteristics of parts such as air valves and cylinder heads, a method for the air valve clearance setting of four stroke large power ICEs is put forward, which named air valve clearance hot determination method. Application results show that the air valve clearance determined using this method are rational and could prolong the service life of the air valve, and ensure the stable running of ICEs. |
| Key words: ICE air valve clearance setting〖FL |
